My recommendation is to use this site here where you can see how many transactions are waiting for confirmation and which ones (sat/byte) get confirmed:
https://jochen-hoenicke.de/queue/#0,24hShould look like this for the last 24 hours:
And for the last four days:
So you see it's very different if you sent it during late daytime or at late night. For the last 4 days there were times when also a transaction of only 2 sats/byte were confirmed quickly. (Usually after 0.00 MEZ). But there's no guarantee that the pattern will happen every day again.
If you set it to 8 hours you'll see that several transactions of only 2 sats/byte were confirmed during the last hours but it's increasing right now:
I assume that the number of transactions will go up a little bit and there'll be mostly transactions confirmed with higher sat/byte as it happend already for the last days. (If you move your mouse over the lines youl'll see which lines are related to which sat/byte.).
So you see right now, transactions over 7 and 8 sats/byte should be confirmed withing the next hour.
Personally, I would set it to 4 sat/byte because I assume it will be better in around 4 or 5 hours and even low sat/byte transactions will be automatically "fished" by then. If you don't have to hurry.